B

An water based or liquid solution that contains both a weak acid and its conjugate (opposite but similar) base, or a weak base and its conjugate acid. Used to lessen the affects of acids and bases added to the solution lessening pH movement.

The resulting propagule, or new plant, arising from asexually produced cells that have not changed into specific tissue types (known as an undifferentiated callus source) typically from a single cell. (Not to be confused with a micro-cutting)

Usually referring to floral initiation, a plant that requires a certain amount of time exposed to short day conditions and long day conditions in a particular order to induce flowering such as lettuce, mustard and others, that induces flowers to form.

D

Usually referring to floral initiation, a plant that has no specific need for a difference in exposure or non-exposure to light basing the change on development of the tissue only, that induces flowers to form.

The application of water or fertilizer solution at a very slow rate that allows for the total absorption of solution into the root medium of plants, usually accomplished through very small tubes that branch off of larger pipes.

Protein molecules of a very specific function, produced by and usually found in, living cells, that act on specific substrates (molecules specific to that particular enzyme molecule) to change or produce specific products (based on where the molecules are cut or new molecules/ atoms attached); a catalyst for biochemical reactions.

All enzyme-induced reactions in a plant. Can also relate to a group of enzymes composed of many different enzyme molecules that act in sequence to reduce a complex molecule such as cellulose to a simple component such as the basic glucose molecule, or to build new molecules, unzip DNA for copying, re-zip DNA, or any other repeated changes that occur inside cells.

M

Specific atoms known as nutrients required by living components in large numbers such as Nitrogen, Phosphorous, Potassium, Calcium, and Magnesium, which includes non-mineral nutrients Carbon, Oxygen and Hydrogen, and measured as a percent of the overall.

Products of cellular metabolism that a formed after the main metabolites are formed, from the breaking down or utilization of the main metabolites or from the "left-overs" of the production of the main metabolites in specific systems.

A naturally occurring, homogeneous inorganic solid substance having a definite chemical composition and characteristic structure. In agriculture, An inorganic element, such as calcium, iron, potassium, sodium, or zinc, that is essential to the nutrition of humans, animals, and plants.

P

Measures the acidity or basicity of a solution and is the negative decimal log (a scale used to keep the numbers understandable and small where each increase of 1 point is actually an increase of 10 times or more) of the hydrogen ion (a hydrogen atom that will bond with other atoms) activity in a solution. Scale is 1-14. 1 is acidic, 14 is basic, and 7 is neutral.

A light driven chemical process that converts carbon dioxide and water into the very basic organic compounds and energy storing molecules used by plants and simple bacteria to form carbohydrates and drive the multitude of cellular activities at the basic molecular level.